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Circulating member for a ball screw

a technology of circulating member and ball screw, which is applied in the direction of gearing, gearing elements, hoisting equipment, etc., to achieve the effect of reducing operation nois

Active Publication Date: 2010-01-05
HIWIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Prevents ball jamming and reduces operation noise by eliminating the conjunction level difference, while providing a more stable and efficient drive torque compared to conventional designs.

Problems solved by technology

These conventional circulating structures have the disadvantages as follows:

Method used

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  • Circulating member for a ball screw
  • Circulating member for a ball screw
  • Circulating member for a ball screw

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Embodiment Construction

[0022]The present invention will be more clear from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with the present invention.

[0023]Referring to FIGS. 4 and 5, an embodiment of the circulating member for ball screw in accordance with the present invention is a circulating cap 20, but the present invention is not limited to the circulating cap, all circulating members installed in the nut of the ball screw are considered to be within the scope of the present invention.

[0024]The circulating cap 20 is radially disposed in a through hole 41 of a nut 40, in the nut 40 are formed Gothic type threads 42 through which the nut 40 is threaded to a screw 30. The circulating cap 20 is formed with a return path 21 for connecting the threads 42 of the nut 40. The structural improvements of the present invention are described as follows:

[0025]At either end of the return path 21 of ...

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PUM

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Abstract

A circulating member for a ball screw is disposed on a nut, the nut is formed with Gothic type threads, and the circulating member of the ball screw is formed with return path for enabling the balls to circulate. The connecting ports at both ends of the return path for connecting the threads of the nut are shaped in Gothic style, thus eliminating the level difference and consequently preventing the balls from being struck and jammed.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a component for a ball screw, and more particularly to a circulating member for a ball screw, which can eliminate the conjunction level difference and prevent the balls from being struck.[0003]2. Description of the Prior Art[0004]Nowadays, ball screw is used more and more widely in modern industries. As a linear transmission means, the ball screw not only has high precision but also has the advantages of low frictional loss, high energy conversion ratio, low noise and high rigidity. Hence, it is self-evident that the ball screw is very important to various industrial mechanisms.[0005]In order for the balls between the screw and the nut to circulate smoothly and for eliminating the circulating impact force caused therebetween, the nut is usually provided at both ends thereof with a circulating member (for example, circulating cap). And the circulating member is a key member for enabling t...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): F16H1/24F16H55/02
CPCF16H25/2223F16H2025/2242Y10T74/19767Y10T74/19772Y10T74/19749
Inventor LEE, YU-SHANLIN, KENNY
Owner HIWIN TECH